PROBLEM TO BE SOLVED: To reduce thickness of a pressure plate of a power piston of a tie rod type negative pressure assistor in which a booster shell is fixed to a vehicle body with a tie rod, without increasing a drawing amount, and secure pressure resistance and durability which is needed for a pressure plate which is thinner than conventional one.SOLUTION: A pressure plate 11 for being combined with a diaphram and forming a partition wall member of a power piston, is configured so that: an umbrella-state part 17 of the pressure plate 11 is divided into a tie rod hole installation area A and other area B, and a slant angle α1 of the tie rod hole installation area A is larger than a slant angle α2 of other area.

    【課題】ブースタシェルをタイロッドで車体に固定するタイロッド型負圧式倍力装置のパワーピストンのプレッシャプレートについて、絞り量を増加させずに薄肉化を図れるようにし、従来よりも厚みの薄いプレッシャプレートで要求される耐圧強度と耐久性を確保可能となすことを課題としている。【解決手段】ダイヤフラムと組み合わせてパワーピストンの隔壁部材を構成するプレッシャプレート11について、そのプレッシャプレート11の傘状部17をタイロッド孔設置領域Aとその他の領域Bに分け、タイロッド孔設置領域Aの斜面角α1をその他の領域の斜面角α2よりも大きくした。【選択図】図3


    Access

    Download


    Export, share and cite



    Title :

    NEGATIVE PRESSURE ASSISTOR


    Additional title:

    負圧式倍力装置


    Contributors:

    Publication date :

    2015-12-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



    NEGATIVE-PRESSURE ASSISTOR

    SAKAKIBARA YUICHI | European Patent Office | 2017

    Free access

    NEGATIVE-PRESSURE ASSISTOR

    SUZUKI KIMIYASU | European Patent Office | 2015

    Free access

    NEGATIVE PRESSURE TYPE ASSISTOR

    SUZUKI KIMIYASU | European Patent Office | 2016

    Free access

    NEGATIVE PRESSURE TYPE ASSISTOR

    GOTO YUJI | European Patent Office | 2016

    Free access

    NEGATIVE-PRESSURE TYPE ASSISTOR

    SUZUKI KIMIYASU | European Patent Office | 2017

    Free access